444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52

General

Target

444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe
Size

355KB
MD5

e9c2f05171c1e715189f1d2444fcb3ed
SHA1

8744c27c0b32c59a30f86f65b3b6e8c5020a21da
SHA256

444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52
SHA512

318cf2b5cb956d52caafd91e97429ff2a48947d65b4b0ff04c4bf1c07dc6612d70bc9569deb3f51dcafca3ecc30fd7171d8181b8335ee30bcf06707e655ba7f7
SSDEEP

6144:MRAhhJxX7bNIAROzTuaPUD/Dtjq6IBnVWIp3KEekhBEyjsLl2neqymp/nnFq:UsAAPaPUDZqRBciIkDjsLl2Qwfg

Score

10^/10

persistence

Malware Config

Signatures

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

Processes:

444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe

Modifies Installed Components in the registry 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{B9F0A184-8B9A-11D5-EBA1-F78EEEEEE983}	444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{B9F0A184-8B9A-11D5-EBA1-F78EEEEEE983}\StubPath = "mskjm32.exe"	444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\VCL = "vcl32.exe"	444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe

Drops file in System32 directory 6 IoCs

Processes:

444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe

description	ioc	process
File created	C:\Windows\SysWOW64\mskjm32.exe	444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe
File opened for modification	C:\Windows\SysWOW64\mskjm32.exe	444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe
File created	C:\Windows\SysWOW64\concp32.exe	444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe
File opened for modification	C:\Windows\SysWOW64\concp32.exe	444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe
File created	C:\Windows\SysWOW64\vcl32.exe	444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe
File opened for modification	C:\Windows\SysWOW64\vcl32.exe	444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe

Program crash 2 IoCs

Processes:

WerFault.exeWerFault.exe

pid	pid_target	process	target process
2724	4028	WerFault.exe	444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe
3540	4028	WerFault.exe	444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe

Modifies registry class 5 IoCs

Processes:

444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B9F0A184-8B9A-11D5-EBA1-F78EEEEEE983}	444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B9F0A184-8B9A-11D5-EBA1-F78EEEEEE983}\InprocServer32	444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B9F0A184-8B9A-11D5-EBA1-F78EEEEEE983}\sm = ebb5525fa3bcf9422c8ff945977d6af9	444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{B9F0A184-8B9A-11D5-EBA1-F78EEEEEE983}\ax = 2941e54f6c868a205f4029d57e6c008f	444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\concp32.exe \"%1\" %*"	444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe

pid process

4028 444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe

pid	process
4028	444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe

description	pid	process	target process
PID 4028 wrote to memory of 2724	4028	444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe	WerFault.exe
PID 4028 wrote to memory of 2724	4028	444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe	WerFault.exe
PID 4028 wrote to memory of 2724	4028	444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe
"C:\Users\Admin\AppData\Local\Temp\444e1d639a79ae2678d800ef16427a39dc4dd636dfdb939eec85807baa4cbc52.exe"
1⤵
- Modifies system executable filetype association
- Modifies Installed Components in the registry
- Adds Run key to start application
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4028

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4028 -s 764
2⤵
- Program crash
PID:2724

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4028 -s 764
2⤵
- Program crash
PID:3540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 4028 -ip 4028
1⤵
PID:4528

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Change Default File Association

1

T1042

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/2724-133-0x0000000000000000-mapping.dmp

Download
memory/4028-132-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download
memory/4028-134-0x0000000000400000-0x0000000000435000-memory.dmp

Filesize
212KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads